Non DCTSIZE multiple width support for JPEG YUV decoding

Source/platform/image-decoders/ImageDecoder.h

 /*
  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 51 matching lines @@
     void* m_planes[3];
     size_t m_rowBytes[3];
 };
 
 // ImageDecoder is a base for all format-specific decoders
 // (e.g. JPEGImageDecoder). This base manages the ImageFrame cache.
 //
 class PLATFORM_EXPORT ImageDecoder {
     WTF_MAKE_NONCOPYABLE(ImageDecoder); WTF_MAKE_FAST_ALLOCATED;
 public:
+    enum SizeType { ActualSize, SizeForMemoryAllocation };
+
     static const size_t noDecodedImageByteLimit = blink::Platform::noDecodedImageByteLimit;
 
     ImageDecoder(ImageSource::AlphaOption alphaOption, ImageSource::GammaAndColorProfileOption gammaAndColorProfileOption, size_t maxDecodedBytes)
         : m_premultiplyAlpha(alphaOption == ImageSource::AlphaPremultiplied)
         , m_ignoreGammaAndColorProfile(gammaAndColorProfileOption == ImageSource::GammaAndColorProfileIgnored)
         , m_maxDecodedBytes(maxDecodedBytes)
         , m_sizeAvailable(false)
         , m_isAllDataReceived(false)
         , m_failed(false) { }
 
@@ skipping 31 matching lines @@
     }
 
     virtual IntSize size() const { return m_size; }
 
     // Decoders which downsample images should override this method to
     // return the actual decoded size.
     virtual IntSize decodedSize() const { return size(); }
 
     // Decoders which support YUV decoding can override this to
     // give potentially different sizes per component.
-    virtual IntSize decodedYUVSize(int component) const { return decodedSize(); }
+    virtual IntSize decodedYUVSize(int component, SizeType) const { return decodedSize(); }
 
     // This will only differ from size() for ICO (where each frame is a
     // different icon) or other formats where different frames are different
     // sizes. This does NOT differ from size() for GIF or WebP, since
     // decoding GIF or WebP composites any smaller frames against previous
     // frames to create full-size frames.
     virtual IntSize frameSizeAtIndex(size_t) const
     {
         return size();
     }
@@ skipping 189 matching lines @@
 
     IntSize m_size;
     bool m_sizeAvailable;
     bool m_isAllDataReceived;
     bool m_failed;
 };
 
 } // namespace blink
 
 #endif